Computational Studies on Ionization Processes of Laser-Produced High-Z Plasmas

概要

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A computer simulation code has been developed for plasmas produced by laser pulse from a solid target pellet which consists of material with a high atomic number. The code is based upon a spherically-symmetric, one-dimensional Lagrangian hydrodynamic code, combined with detailed atomic transition processes. Emphasis is placed on the ionization processes involved. The computed results indicate that the spatial region within the target volume where the production of multiply-charged ions prevails depends strongly upon the combination of target material and laser frequency. Also, it is shown that two distinctly different categories may exist as for ionization processes; one is the single-step process between the ground levels of each multiply-charged ion, and the other is through stepwise excitations among a series of excited levels of each ion.
社団法人応用物理学会の論文
1979-12-05